Abstract: A method of determining a body measurement of a subject based on images of the subject is disclosed. A set of images of the subject are received, each image depicting the subject in a respective body pose. For each of a plurality of images of the image set, the method identifies for a given part of the subject body an image measurement of the given body part based on the image, the image measurement defining a two-dimensional extent of the body part derived from the image. The image measurements determined for the plurality of images are then input to a prediction model, the prediction model configured to generate a predicted body measurement of the given body part based on the image measurements.